Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
2D relative effective diffusion coefficient (Dr) map of the NMR biofilm reactor obtained by PFG-NMR. The central 2 mm of the 10-day-old biofilm are shown. A) The bulk liquid (yellow) flowing above the biofilm, B) the top of the biofilm (yellow/red interface), C) a low-diffusion region in the biofilm (gray), D) the coverslip that supports the biofilm (black), and E) a thin layer of water trapped between the coverslip and the reactor door.
